A plant that produces wrinkled, green seeds was mated to a plant that produces phenotypically round, yellow seeds. In the F1 generation, half of the plants produced round, yellow seeds and the other half produced round, green seeds. The round, yellow F1 seeds were planted and those plants were allowed to self-fertilize. In the F2 generation what fraction of the seeds will be genotypically identical to the plants of the parental generation?A. 3/16 B. 1/16
C. 1/4
D. 9/16

Answers

Answer 1
Answer:

Answer:

A. 3/16

Explanation:

The plants with wrinkled, green seeds (rryy) and  round, yellow seeds  were crossed. Since the progeny did not show a "wrinkled" trait, the parent plant with "round" seeds was homozygous for seed shape and heterozygous for the seed color (RRYy). The genotype of the double recessive parent plant would be "rryy".

A cross between RRYy x rryy gives progeny in following ratio: 1/2 round, yellow seeds( RrYy ): 1/2 round, green seeds (Rryy)

The F2 progeny was obtained by self crossing RrYy plants. In F2 progeny, 3/16 plants (2/16 RRYy and 1/16 rryy) were genotypically identical to the parent plant.  


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In shorthorn cattle, coat colors are governed by a codominant pair of alleles R and W. The homozygous genotype RR produces red, the other homozygote produces white and the heterozygote produces roan ( a mixture of red and white). The presence of horns is produced by the homozygous recessive genotype pp and the polled condition by its dominant allele P. If roan cows heterozygous for the horned gene are mated to a horned, roan bull, what phenotype ratio is expected in the offspring?
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PLEASE HELP WITH THIS ONE QUESTION

A woman ovulates but does not get pregnant. Trace the journey of the egg from ovulation torelease of the egg during menstruation. Put the following structures in order: cervix, fallopian
tube, ovary, uterus, vagina.

Answers

Final answer:

The journey of the egg from ovulation to release during menstruation includes the ovary, fallopian tube, uterus, cervix, and vagina.


Explanation:

The journey of the egg from ovulation to release during menstruation involves several structures in the female reproductive system. The process begins with ovulation, during which an egg is released from the ovary. The egg then travels through the fallopian tube, where it may be fertilized if sperm is present. If the egg is not fertilized, it continues to the uterus and is eventually shed during menstruation through the cervix and vagina.


Learn more about journey of the egg during menstruation here:

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Identify the low-pressure areas on the map.

Answers

Answer: the low-pressure areas on the map are the purple triangle and half circles

Explanation:

pepsin is found in the stomach. Salivary amylase is found in the mouth. And arginase is found in the liver. What does the graph indicate about the relative acidity of these three locations?

Answers

Pepsin is found in the stomach. Salivary amylase is found in the mouth. Arginase is also found in the liver. The pH of the pepsin in the stomach is acidic. The pH of the pepsin in the stomach is acidic (around 2), the mouth pH is nearly neutral, and the liver pH is basic.

What is the pH of different organs?

Different organs of the body function well at different pH levels because enzymes exhibit their best activity in a specific pH range The enzyme that acts in the stomach can't act in the mouth due to a change in pH. The mouth has a nearly neutral pH, ranging from 6.5 to 7, and in this place, the salivary amylase works best and carries out the initial digestion of the carbohydrates. Pepsin works in stomach having a pH nearly 2.

Hence, the pepsin enzyme in the stomach works best at an acidic pH of about 2. The amylase works best at neutral pH. The liver enzyme arginase works best at a basic pH.

Learn more about the pH of different organs here.

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Answer:

the answer is B ( the stomach is more acidic thank the mouth, which is more acidic than the liver

Explanation:

Help me please , easy 10 points ... just look at the picture & answer the question.

Answers

Copper is metallic !!

Which statement best describes the role of the nucleus in a cell?The gate at a factory keeps out unwanted cars.
The elevator at a factory moves materials around the building.
The boss at a factory gives out orders and directions.
The boxes at a factory are used to ship materials to customers.
O

Answers

Answer:

The boss at a factory gives out orders and directions.

Explanation:

The nucleus is an organelle that is enclosed by nuclear membrane and carry genetic material in eukaryotic cells.

The role of nucleus is to monitor and control the functioning of different activities such as growth and metabolism of the cell and also transfers the hereditary information. Likewise boss of a factory gives out orders and directions to regulate the factory properly.

Hence, the correct option is "The boss at a factory gives out orders and directions."

Tall plants are dominant to short plants what are the possible genotypes for a tall plant

Answers

Answer: possible genotypes are TT or Tt